knoll



R. KNULL.

PIPE COUPLING.

APPucATloa msu nov. la, xels.

1,318,674. Pand oct. 141, 1919.

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PP COUPLiNG.

Prucmon man nov. 13. ma.

1 ,318,6174. Patented 0ct.14,1v919,

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rounded upon the inner face of thewall .9, by an annular projection 11, Ubiiwhicii is seated and which is surrounde by a correspondin ly perforated ring or gasket 12 of a suliltabl; resililent rraterial, such las rubber 0r t ele- .Tsi .r' y0rta-@S willzlbe; eviixbnt; pldviielgl o? at suit1 ably-formed valve, as 13, preferably made oi' sheet-metal and having aV hollow stem 14 which is closed at itsl freev end and extends into and is niovably disposed in the, perforated portions of the ring or gasket 12 and the wall 9. The opposite endortion of llysc'rewi threaded, as at 15, for screwing said-member 8 upon the screw-threaded part 7 of the said .body 2.V Thatthe said valve 13 Wil` be .properly vseated ilponftheperforated ringpr gas ketr12 ,tl 1e Valve is preferably provided with a marginal bead-like .edgedl` aS vshOWIl n Figs.,2 andA 3 of the drawings, and a suitably coiled spring, 17 is placed between. the said valve 13 and the acefportion 18. of .the screw-threaded portion of the body 2, said spring acting, to close the valve down upon its seat. when the coupling members are separa/teder disconnected, as will be clearly evident Afrom aninspection of Eig. 3 of the drawings. As shown,I the said member 8 is kalso provided, externally, with Aan.aniiular rib o1 projection 19, the urpose of which will be presently more ful y stated.

The reference-character 2Q indafs a ring-like element which isprovided at a suitaalepoint with a mar 'nalhook-shaped inem er 21, and opposite t e` said member 21 are a pair of periorated ears or lugs .22 which carry a pivot-pin 23. 4v:Pivxitally mounted. ree the Said 23s is a leakinglevr 24,.,f9'r'msd, Awith 9 QQk-shand 61111.25 and a engrpiece 25,@ coiied. spring. as .27, bengemployed in connection with. the pin, tle 23 und thQlever 2 4 for normally forcing the-saidy lever into iitsrelaizivey osition repre sented in said 'Fi 2 and 3 o thqdrawings. Saitehly nieuwe Within. .saisine like membega.; aheeggseued met @wie se urefA .libia saifme be?. is. a annular llgrik ,Ptln' 2 0 Va i? l?? 341i e. Feld aerei-@gitanas .at be retiens'. tiene@ M1. iillt ,GSI puppen seiltube the end-,port''olo the'ilsiia 4wrbl,ets411.1!!51..11s.13.1- lf des' ,i and. "as Ari. extra Rreeutsntat its 'll-Pfioli, the, Seid 'tuba-528.1 .ay beproifd Wbi @iatliipes and Sharp f'efenis 110.50 S 115.3, enu'vlehtie .whine 31.' isslppd Mid rhidteb, lierlllzes .11,1 thftubm livubth ilibrllle. Il' from, H's' R'detfitlly" .ue'dyei' Said turbe 28 etnie ses einer. espone fi/Sav time@ with a, wall-portion33 provid," bdivithfa, se'- esfffilffblb, Bellis" 0r Pratioii.. as 34 hd @www xiislyjuro .itis Seid elfdf4 the tube 28 is a gasket or packing tion of said Figs. 1 2 and 3 of the drawings,

suiice v itto say, ow'ver, that when the parts are connected, the gasket or packing `ring 35 Will make a gas-tight connection,

and the wall-portion 33 will unseat the into its openedposition, a continuous passage for the gas through the gas-fixture and the coupling into the flexible gas-tube will be produced.

Furthermore, it will be seen, that should the 'parts of the coupling become separated, Vthe valve will automatioallyA close so that ,therevvill bev no escaping of the gas, although the gasfplug 5 has not been turned into its closedxpositlon.

In Figs. .6 and `7 of the drawings, I have shown my present invention in the form of a coupling for connecting the end of two piecesoftubing or piping, as 36 and 37,

The couplin in this case consists, essentially, of a main tubular member or element 38 formed atorinear one end with a Wall 39, which iscentrallyperforated, as at 40, the opening thus provided being surrounded upon the inner face ofv the wall by an annular projection 41, formed with a valveseat 42, upon which is adapted to, be seated the cone-shaped portion 44 oa valves-disk 43, A. stem 45 is also provided which extends from said cone-sha ed ortion 44 and projects into and is xnovady isposed in the said central.. perforation 40, herein-above mentioned. The opposite end-portion of the said member or body 38 is internally screw-threaded, as at 46, and screwed into said, end-portion so as to bepositively fixed therein, is a dis o r plate 47 which is also centrally perforated, as at 48. A suitable coilfyspring, .as :43, is disposed between the SadVelY-.dsk @andthe Seid disk or Plat@ 4T, Aasbowmthe zsaid member oralement 3,8, isl also rovided, externally. near its respective en -port'ions with a painof annular rib or projections .50 and' 51.. t ,/,SHe referencefqhagracter ,52, indicates a ring'gslike element ,which is rovided with a marginal Vhoo,k-slmped mem er 53 and opposite the said member 53 are a pair of ears 0111??,54 ,said earsor lugs carrymga pivotpi`n lsivogtall `mounted upon said `in is aXflocking;leveiwt formed with a y ookshaped ,endff and ,a yfinger-piece 58, a coiled sring') beingdemplfoyed in connection with t ,eylpinl'rfajn 1 ,thellieyer 56 for .fllqrmally forciiigglsai'd lievenv into its relative position in said'liigy@ Suitably mounted @Prese-ated 1,318,674 Y Y, B

fitted Within said ring-like element, a paokinto detaehble holding engagement with ing ring upon said tube between the said the projection of seid main tubular body.

annular iange and the end of the main tu- In testimony that I ela-im the invention bular body, a hook-shaped member extendset forth above I have hereunto set my hand 5 ing from said ring-like element, and a lookthis 11th day of November, 1916.

ing-lever pvotally connected with said ring- Iike element, said lever being also provided REINHOLD KNOLL with a hook-shaped member, said hook- Witnesses: shaped members of the ring-like element FREDK. C. FRAENTZEL,

10 and said lever being adapted to be brought FREDK. H. W. FRAnNTzEL.

copies et this patent may he obtained for ve cents each, by addressing the "Commissioner ot Patents, Washington, D. 0. 

